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I have just noticed the oil pressure light come on in my 87 535i...... I checked the dip stick and the oil is a touch below the 2nd marker........ exactly what is the 2nd marker supposed to be??????? i would check in my brand new BENTLEYS, but have to wait until I receive it from the UK...... Apparently AMAZON.COM will not post to me in AUSTRALIA (scumbags) so I had to purchase from the UK instead (thanks).............. gotta wait 4-6 weeks though!!!!!

I'm guessing if oil is correct, then it must be a dodgy oil pressure switch........ another problem to add to the GLITCH LIST

My oil pressure switch failed by leaking at the point where the wire connector enters it; very unusual. It's an easy and cheap repair though, they cost less than $20. You may want to actually remove the switch and check the oil pressure at that port with a good quality gauge, it will give you piece of mind.

Thanks to the both answers............. noticed today the light actually went out for about 5 minutes but came back on again................... as for the oil level answer............ glad I am just on full and not dry...... can ignore the light for the next week or so until I hopefully get the BENTLEYS from the UK and a replacement oil pressure switch........

might as well do an OIL and FILTER change at the same time as the switch fix!!!!!!